<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    
</body>
<script>
    /**
     * 获取当前页面的URL路径
     * host主机名（ip）+端口
     * hostname主机名
     * port端口
     * demo11
    */
    // console.log(window.location.href);
    // var urlStr = "http://localhost:3000/?username=zhangsan&age=20";
    var searchStr = location.search;
    searchStr = searchStr.slice(1);//没有?
    var arr = searchStr.split("&");//分隔
    var obj = {};
    for(i = 0;i<arr.length;i++){
        var childArr = arr[i].split("=");//遍历数组再次分隔
        obj[childArr[0] = childArr[1]];//转换成对象
    }
    console.log(obj);

</script>
</html>